The religious right's main effort to enshrine the right to kill is centered around the hate crimes amendment being debated in the House this week. As Joe wrote earlier, the hate crimes amendment takes the current US hate crimes law, that has been on the books for decades, and applies it to everyone.
Under the existing law, only violence inspired by the hatred of some classes of Americans is covered - you might even say that those classes, which include Christian fundamentalists, have been granted "special rights" under the law. Already included in the current law is violence motivated by the race, religion or national origin of the victim. The hate crimes amendment being debated today would add gender, disability, sexual orientation and gender identity to the already-existing law.
Regardless of your views on the propriety of hate crimes laws, if America is going to have such a law on the books - and we already do - shouldn't it protect everyone? If not, then the very nightmare that hate crimes law opponents predict - a world in which some classes of people have more legal protections than others - will not only be a reality, it will remain our current reality.